It’s important to remember that addiction is a treatable disease. If you think you may have a problem, there is no shame in admitting that you may need help. It may be a family member or friend of yours is suffering, in which case you are doing the right thing by looking for answers to his or her problem.
Alcohol Effects- What's happening inside your body.
Painkiller Addiction. Prescription drug abuse is when someone takes a medication that was prescribed for someone else or takes their own prescription in a way not intended or for a different reason—like to get high. Important note (in my opinion): if you are taking painkillers correctly, you will not feel "high". If you feel "stoned" you took too much.
Meth Addiction = A chronic, relapsing disease characterized by compulsive drug seeking and use.